Suggestions for a good small sealed box 12"?

Hi all,

Ok, here's my situation. I just put a new amp onto my 12" old Eclipse sub. I can't remember its model number, but it was there lowest model with a regular polyproplyne cone, not the aluminum or titanium models. Its about 5 years old now. I have it in a pre-fab standard looking trapezoid box. However, the box isn't big enough for the sub and its Q is really high right now and kinda sounds like ***. It plays loud, but I looking for more quality. I used to be very well versed on the subwoofer market, but I haven't looked at the market in 4 or 5 years now so I'm wondering what's out there for decent 12's that sound good in a small sealed box. If someone can remind me of the math formula used to calculate the volume of a trapezoid, I'd be appreciative. I can then give my exact cubic ft. requirements. I can give the woofer about 500 watts. I would like it to be able to play loud of course, but I'm primarily looking for an improvement in quality. My budget is $150, New or Used.

Re: Suggestions for a good small sealed box 12"?

Phoenix gold Titanium Ti12d. Can be put in very small sealed box. I have the 15 inch version and the max recomended sealed box size is 1.75 cubic feet. If you go to a ported box, the minumum is over 3 feet though. This is a high output sup that has great sq too, especially since you can get them for $120 dollars including shipping off ebay (insane deal).

Eclipse CD5444
DLS R6A's -> Aura RPM2300
sold the subs because i don't drive much anymore